Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {12, 17, 21, 29, 7, 5} → ______
- Prime numbers in {23, 25, 15, 29, 3, 9} → ______
- Prime numbers in {19, 11, 13, 29, 21, 9} → ______
- Prime numbers in {21, 15, 29, 3, 9, 19} → ______
- Prime numbers in {2, 5, 29, 12, 15, 27} → ______
- Prime numbers in {21, 7, 17, 8, 25, 12} → ______
- Prime numbers in {19, 11, 9, 21, 7, 15} → ______
- Prime numbers in {23, 9, 5, 13, 25, 19} → ______
- Prime numbers in {19, 27, 21, 15, 23, 7} → ______
- Prime numbers in {7, 25, 8, 11, 3, 29} → ______
- Prime numbers in {11, 21, 13, 25, 9, 15} → ______
- Prime numbers in {2, 29, 15, 11, 21, 23} → ______
- Prime numbers in {27, 19, 23, 29, 2, 15} → ______
- Prime numbers in {11, 25, 19, 27, 15, 23} → ______
- Prime numbers in {19, 8, 23, 13, 29, 11} → ______
- Prime numbers in {25, 8, 29, 13, 23, 9} → ______
- Prime numbers in {21, 13, 29, 5, 8, 3} → ______
- Prime numbers in {23, 9, 15, 27, 12, 21} → ______
- Prime numbers in {25, 2, 7, 21, 29, 11} → ______
- Prime numbers in {27, 13, 25, 11, 8, 7} → ______